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Best heating and air conditioning pros near Harpswell, ME

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TRUSTED BY HARPSWELL, ME HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon85
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Harpswell - Updated Nov 2026

JT Heating Service
4.7(
21
)
Gas Boiler or Radiator Heating System - RepairGas Furnace / Forced Air Heating System - RepairOil Boiler or Radiator Heating System - Repair+5 more

Serving Harpswell, ME and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"Justin from JT Heating called promptly to ask about my service request and arrived promptly as well. He was courteous and professional and kept me informed throughout the repair. He repaired the plumbing leak efficiently and quickly. When I asked for another appointment to have my furnace cleaned, he said he was able to do it right then. I was very pleased with his work on the plumbing and on my furnace and would definitely hire him again for any further needs. I highly recommend this company for their efficient service and professionalism."
Response time3 hrs
Recommended by94%of homeowners
Avatar for swb plumbing/hvac
swb plumbing/hvac
5.0(
15
)
Heat Pump - Install or Replace

Serving Harpswell, ME and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Seth was very prompt and worked hard to find the parts and solution to an old bath faucet with a bad leak. He kept me informed about the process and alternatives for the repair. I would recommend him for future repairs."
New condensate line property piped into existing house sewer to code
1 1/2” water mains
3 zone heat pump install
Install condensate pump and neutralizer to bring existing boiler upto code.
1 1/2” water mains insulated after we installed them.

+10

Response time1 day
Response rate100%
31 neighbors recently requested a quote
Avatar for Able Trades
Able Trades
5.0(
8
)
Heat Pump - Install or ReplaceDuctless Mini-split A/C - Install or Replace

Serving Harpswell, ME and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Matthew and his crew were extremely professional and efficient. The work was completed on the day scheduled and they cleaned up after themselves. Heat pump works great and they were able to direct me to an Effeciency Maine site where I received a substantial discount on the installation, equipment and cleaning plan!! Great company to do business with and will recommend them to family and friends. I will definitely not hesitate to use this company again if the need should arise!!"
New Gloucester Home
New Gloucester Home
New Gloucester Home
New Gloucester Home
New Gloucester Home

+1

Response time1 day
Response rate100%
2 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

Yes, running your air conditioning unit too cold can cause condensation in the air ducts and built up moisture on the air filter, resulting in a breeding ground for mold and mildew. Mold and mildew growth can irritate those with respiratory issues, so it’s best to keep your AC running at a normal temperature.

Ideally, an AC system should never need more Freon (a popular refrigerant) because it circulates in a closed loop. However, refrigerant leaks are not uncommon and may occur gradually over 5 to 15 years. If your system has a leak, it will need to be topped up in a process known as an AC recharge. Signs of a refrigerant leak include weakened AC performance, increased humidity in your home, higher utility bills, and a hissing sound from the unit. The cost of an AC recharge will depend on the size and type of your AC unit, as well as the type of refrigerant it uses.

You can buy a new AC capacitor through most big-box home improvement stores, from an HVAC contractor, or from the manufacturer. Use the model number of your air conditioning unit to make sure you purchase the right part for your unit. Also, keep in mind that the cost of this type of part can vary significantly depending on who you purchase it from, so shop around to get the best price.

ACs don't run on water. They're not connected to drain pipes or any part of your plumbing system. However, they need refrigerant to run. Refrigerant is a gas or liquid that has a low boiling point and absorbs the heat in your home. ACs need this in order to be functional and cool your home. If you suspect your AC is low on refrigerant, you need to contact a licensed HVAC professional. Refrigerant is a dangerous chemical that requires specialized training and permits to work with. 

To keep your air conditioner in good working condition, you should have it serviced by a professional at least once per year, ideally in the spring before the cooling season begins. If your AC unit is 10 years or older, consider servicing it twice a year (once in the spring and once in the fall) to catch potential problems early and help it reach its full lifespan. During a service visit, a technician will inspect, clean, and replace parts as needed. Regular maintenance helps avoid costly repairs. As a DIY task, you can also clean the evaporator coils annually.

The Harpswell, ME homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.